OFFICIAL ANIMAL IDENTIFICATION NUMBER (AIN) DEVICES 

WITH “840” PREFIX 

FEBRUARY 7, 2014

Visual AIN Tags

The minimum standard for official identification of some species is a visual eartag. For 

example, when using the 840 AIN for cattle, the minimum identification standard is the visual 

AIN eartag. 

Eartags with the AIN are USDA official tags and are: 

 Designed for one-time use (tamper evident) 

 Imprinted with 

- AIN (15-digit number starting with 840) 

- Official Eartag Shield 

- Unlawful to Remove 

- Manufacturer’s Logo or Trademark (printed or impression of) 

For describing 2-piece tags, the designation of “Tag Piece A,” is the piece attached to the inside 

of the animal’s ear (visual from the front of the animal). “Tag Piece B” is the piece attached to 

the outside of the animal’s ear (visual from behind the animal). Imprinting the AIN on Tag Piece 

A is required; imprinting the AIN on Tag Piece B is optional. When the AIN tag is imprinted on 

Tag Piece B, the tag set is packaged in containers or trays to keep both tag pieces together as 

a pair before being applied.

AIN Radio Frequency (RF) Devices 

AIN eartags with radio frequency identification (RFID) technology are also available. The RFID 

transponder, in these options, is incased in the visual tag. Such technology is considered 

supplemental identification (the visual tag remains the animal’s official identifier). Tags with 

RFID technology (referred to as AIN RF tags) must 

have all 15 digits of the AIN printed on the tag 

pieces that contains the transponder. The Official 

Eartag Shield and text, “Unlawful to Remove” must 

be printed on the other piece. AIN RF tags, when 

applied, are to be attached to the animal’s left ear 

according to the manufacturer’s instructions. 

RFID injectable transponders are also available with 

the AIN number for certain species including equine, 

alpacas, llamas, sheep and goats. 

Paired AIN Tags 

AIN tags may be obtained in pairs consisting of two visual tags or one AIN RF tag with a visual 

tag. In such cases, the same AIN is imprinted on both tags. Contact the tag manufacturer to 

obtain more information on this option. 

Obtaining and Using AIN Tags 

AIN tags are manufactured only by the authorized tag manufacturers listed on the following 

pages. AIN tag managers representing AIN tag manufacturers provide AIN devices to producers 

or individuals responsible for identifying the animals. Contact the AIN manufacturer for 

Official Eartag 

Shield 
 

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information on the AIN device/tag managers in your area. Producers should not sell, loan, or 

give tags they have purchased to other producers, because all AIN tags they have purchased 

are recorded as being distributed to them using the location identification system used by their 

State. 

Tags with ICAR Manufacturer Code or USA Prefix 

Tags that use ICAR manufacturer codes or the USA prefix are being phased out. ICAR 

manufacturer codes or “USA” can be used as the first three characters for tags manufactured 

before March 11, 2014 and applied to the animal before March 11, 2015. See “Official Eartags – 

Criteria and Options” document for more information on, and examples of, tags with the 

manufacturer code and “USA” prefix 

at: http://www.aphis.usda.gov/traceability/downloads/ADT_eartags_criteria.pdf. 
 

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Allflex USA, Inc. 

P.O. Box 612266 

2805 East 14th Street 

Dallas Ft. Worth Airport, TX 75261-2266 

Toll Free: (800) 989-TAGS [8247]

Phone: (972) 456-3686

Fax: (972) 456-3882

www.allflexusa.com

840 VISUAL TAGS 

Tag Name Type Panel Size AIN 

Product Code 

Species 

1. Allflex Ultra 

Maxi 

Visual Panel Eartag Height = 98 mm 

Width = 74 mm 

AIN 0020A 

(w/ Button Male) 

AIN 0020b 

(w/ Large Male) 

Bison, Cattle, 

Deer/Elk 

Bison, Cattle, 

Deer/Elk 

2. Allflex Ultra 

Large 

Visual Panel Eartag Height = 80 mm 

Width = 58mm 

 

AIN 0021a 

(w/ Button Male) 

AIN 0021b 

(w/ Large Male) 

Bison, Cattle, 

Deer/Elk 

 

Bison, Cattle, 

Deer/Elk 

3. Allflex Ultra 

Junior 

Visual Panel Eartag 

 

Height = 59 mm 

Width = 57 mm 

AIN 0022 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk, Pigs 

4. Allflex Integra 

Male/Tamper 

Proof Female 

Visual Panel Eartag Height = 38.1 mm 

Width = 55.88 mm 

AIN 0043 

(w/ Button Male) 

Pigs 

1. 2. 3. 

4. 
 

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Allflex USA, Inc. (Continued)

840 RFID TAGS 

Tag Name Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. FDX Ultra EID Tag Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 

30.8 mm 

 

AIN 0003 

 

Bison, Cattle, 

Deer/Elk, Pigs 

 

2. HDX High 

Performance Ultra 

EID Tag 

Button Eartag 

ISO 11784/85 

Compliant - HDX 

Diameter = 

29.9 mm 

 

AIN 0004 

 

Bison, Cattle, 

Deer/Elk, Pigs 

 

3. FDX Plus Ultra EID 

Tag 

Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 

30.7 mm 

 

AIN 0016 

 

Bison, Cattle, 

Deer/Elk 

 

4. “All in One” FDX 

Plus EID Tag 

RFID Panel Eartag 

ISO 11784/85 

Compliant - FDX 

Height = 

103.76 mm 

Width = 

76.2 mm 

AIN 0017 Bison, Cattle, 

Deer/Elk 

5. “All in One” High 

Performance HDX 

Tag 

RFID Panel Eartag 

ISO 11784/85 

Compliant - HDX 

Height = 

103.76 mm 

Width = 

76.2 mm 

AIN 0018 

 

Bison, Cattle, 

Deer/Elk 

 

6. Combi E23 Button Eartag 

ISO 11784/85 

Compliant - HDX 

Diameter = 

23 mm 

AIN 0058 Bison, Cattle, 

Deer/Elk, Pigs, 

7. FDX miniV Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 

26.5 mm 

AIN 0061 Deer/Elk, Pigs, 

Sheep/Goats 

1. 2. 3. 4. 5.

6. 7. 
 

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Allflex USA, Inc. (Continued)

840 RFID INJECTABLE TRANSPONDER 

Tag Name Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

1. Allflex Global 

Ident Microchip 

Injectable 

Transponder 

ISO 11784/85 

Compliant – FDX 

Length = 12 mm 

Diameter = 2.1 mm 

AIN 0036 Equine, 

Alpaca/Llama, 

Deer/Elk 

1. 
 

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AVID Identification Systems Inc. 

3185 Hammer Avenue 

Norco, CA 92860-1983 

 

Marketed by:

 EZid Livestock Identification, Greeley, CO

Phone: (970) 351-7701 

Toll free: (877) 330-3943 

Fax: (970) 351-7711 

www.ezidavid.com

840 RFID INJECTABLE TRANSPONDER 

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

1. EZID 

Transponder 

Implant 

Injectable 

Transponder 

ISO 11784/85 

Compliant - FDX 

134.2 kHz 

Length = 12 mm 

Diameter = 2.1 mm 

AIN 0019 Deer/Elk, Equine, 

Alpaca/Llama 

1. 
 

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DataMars 

250 West Cummings Park 

Woburn, MA 01801

Phone: (781) 281-2216

840 VISUAL TAGS 

Tag Name Type Panel Size 

 

AIN 

Product Code 

Recommended 

Species 

1. F6S Medium Visual 

Panel w/button male 

 

Height = 14 mm 

Length = 41 mm 

Width = 37 mm 

 

AIN 0056 

 

Bison, Cattle, 

Deer/Elk 

2. F10S Large Visual Panel 

w/button male 

 

Height = 13.48 mm 

Length = 60 mm 

Width = 57 mm 

 

AIN 0057 

 

Bison, Cattle, 

Deer/Elk 

 

1. 2. 
 

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DataMars (Continued) 

840 RFID TAGS

Tag Name Type RFID 

Technology 

Size 

(transponder piece)

AIN 

Product Code 

Species 

1. F2SFDX RFID Button 

w/button male FDX 

Diameter = 25 mm 

Height = 6.75 mm 

AIN 0051 

 

Pigs, Alpaca/Llama 

 

2. F2SHDX RFID Button 

w/button male HDX 

Diameter = 25 mm 

Height = 6.75 mm 

AIN 0052 

 

Pigs, Alpaca/Llama 

3. F4SFDX RFID Button 

w/button male FDX 

Diameter = 30 mm 

Height = 6.65 mm 

AIN 0053 Bison, Cattle, 

Deer/Elk 

4. F4SHDX RFID Button 

w/button male HDX 

Diameter = 30 mm 

Height = 6.65 mm 

AIN 0054 Bison, Cattle, 

Deer/Elk 

5. F8SHDX Triangle RFID 

w/button male HDX 

Height = 14.5 mm 

Weight = 2.3 g 

AIN 0055 Bison, Cattle, 

Deer/Elk 

1. 2. 3. 4. 5. 
 

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Destron Fearing 

490 Villaume Avenue 

So. St. Paul, MN 55075

Phone: (651) 552-6316

www.destronfearing.com 

840 VISUAL TAGS 

Tag Name Type Panel Size 

 

AIN 

Product Code 

Recommended 

Species 

1. Medium Visual 

Tamper-Evident 

Tags 

Visual Panel Eartag 

 

Height = 58 mm 

Width = 57.5 mm 

 

AIN 0023 

 

Cattle 

 

2. Large Visual 

Tamper-Evident 

Tags 

Visual Panel Eartag 

 

Height = 68.3 mm 

Width = 57.9 mm 

AIN 0024 

 

Cattle 

 

3. Extra Large 

Visual TamperEvident Tags 

Visual Panel Eartag 

 

Height = 117.5 mm 

Width = 76 mm 

 

AIN 0025 

 

Cattle 

 

1. 2. 3. 
 

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Destron Fearing (Continued) 

840 RFID TAGS

Tag Name Type RFID 

Technology 

Size 

(transponder piece)

AIN 

Product Code 

Species 

1. Destron e.Tag Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 30 mm AIN 0001 

 

Bison, Cattle, 

Deer/Elk, Pigs 

 

2. Destron Combo 

e.Tag 

RFID Panel Eartag 

ISO 11784/85 

Compliant - FDX 

Height = 117 mm 

Width = 70 mm 

 

AIN 0002 

 

Deer/Elk, 

Sheep/Goats 

 

3. Sheep/Goat Tag Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 25.5 mm 

 

AIN 0013 

 

Deer/Elk, 

Sheep/Goats 

4. g.Tag Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 30.5 mm 

 

AIN 0038 Bison, Cattle, 

Deer/Elk, Pigs, 

Alpaca/Llama 

5. Destron HD Set Button Eartag 

ISO 11784/85 

Compliant - HDX 

Diameter = 30 mm AIN 0060 Bison, Cattle, 

Deer/Elk, Pigs 

6. TSWP HD Set RFID Panel Eartag 

ISO 11784/85 

Compliant - FDX 

Male: 

Height = 42 mm 

Width = 56 mm 

Female: 

Diameter = 30 mm 

AIN 0046 Bison, Cattle, 

Deer/Elk, Pigs 

7. TSWPE Set RFID Panel Eartag 

ISO 11784/85 

Compliant - FDX 

Male: 

Height = 42 mm 

Width = 56 mm 

Female: 

Diameter = 30 mm 

AIN 0047 Bison, Cattle, 

Deer/Elk, Pigs 

8. Destron r Tag UHF Panel Tag 

Ultrahigh frequency 

Height = 52 mm 

Width = 40 mm 

AIN 0049 Bison, Cattle, 

Deer/Elk, Pigs 
 

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Destron Fearing (Continued) 

1. 2. 3. 4. 5. 

6. 7. 8. 

840 RFID INJECTABLE TRANSPONDER 

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. Equine Lifechip Injectable 

Transponder 

ISO 11784/85 

Compliant - FDX 

134.2 kHz 

Length = 12 mm 

Diameter = 2 mm 

AIN 0009 Equine, 

Alpaca/Llama, 

Deer/Elk 

2. Equine 

Biothermo 

Lifechip 

Injectable 

Transponder 

ISO 11784/85 

Compliant - FDX 

134.2 kHz 

Length = 12 mm 

Diameter = 2 mm 

AIN 0009b 

 

Equine, 

Alpaca/Llama, 

Deer/Elk 

 

1. 2. 
 

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Eriginate 

3445 Urbandale Lane North 

Plymouth, MN 55447

Phone: (507) 344-8005

http://www.eriginate.com

Or www.etattootag.com 

840 RFID TAGS

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. eTattoo 

 

UHF Panel Tag 

Ultrahigh frequency 

114.3 mm 

x 76.2 mm 

AIN 0039 

 

Bison, Cattle 

 

 1. 

 
 

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Hana Micron America 

1551 McCarthy Blvd. Suite 201 

Milpitas, CA 95035 

Phone: (408) 649-2225 

www.hanamicron.com

840 RFID TAGS 

Tag Name Type Panel Size AIN 

Product Code 

Species 

1. RaFid Tag 

 

UHF Panel Tag 

Ultrahigh frequency 

Height = 61 mm 

Width = 98 mm 

 

AIN 0040 Cattle 

2. RaFid 5 Tag UHF Panel Tag 

w/button male 

Height = 118 mm 

Width = 77 mm 

AIN 0067 Bison, Cattle 

1. 2. 
 

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Leader Products 

465 Humo Highway 

Craigieburn, VIC 3064 Australia 

www.leaderproducts.com.auleader

EZid Livestock Identification

Greeley, CO

Phone: (970) 351-7701 

Toll free: (877) 330-3943 

Fax: (970) 351-7711 

www.EZIDavid.com/let.html

840 RFID TAGS 

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. Leadertronic HDX RFID Eartag 

ISO 11784/85 

Compliant - HDX 

Height = 35 mm 

Width = 36 mm 

AIN 0008 Bison, Cattle, 

Deer/Elk, Pigs 

1. 
 

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MicroTraks, Inc. 

3401 Wyeth Dr. 

Guntersville, AL 35976 

Phone: (256) 200-5842 

www.microtraks.com

840 RFID TAGS

Tag Name Type RFID 

Technology 

Size 

(transponder piece)

AIN 

Product Code 

Species 

1. MicroTraks UHF Panel 

w/button male 

Width = 76.11 mm 

Length = 117.48 mm 

AIN 0066 

 

Cattle 

 

1. 
 

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Perma-Flex Incorporated 

724 Commerce Street 

Aberdeen, SD 57401 

Phone: (612) 799-1794 

Fax: (866) 406-7296 

www.permaflextags.com

840 VISUAL TAGS 

Tag Name 

 

Type Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. Large Cattle Tag 

T.E. 

Visual Panel Eartag Height = 32 mm 

Width = 78 mm 

Length= 105 mm 

AIN 0048 Bison, Cattle, 

Deer/Elk, Pigs 

1. 
 

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Shearwell Data Limited 

Putham, Wheddon Cross 

Minehead, Somerset, TA24 7AS 

Phone: +44 1643 841552 

www.shearwell.co.uk

840 VISUAL TAGS 

Tag Name Type Panel Size AIN 

Product Code 

Species 

1. Auto Set Visual Clip Tag Width = 9mm AIN 0064 Deer/Elk, Pigs

 Length = 37mm Alpaca/Llamas 

 Length = 78.9mm (before application) 

_____________________________________________________________________________________________ 

1. 
 

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Shearwell Data Limited (Continued) 

840 RFID TAGS

Tag Name Type RFID 

Technology 

Size 

(transponder piece)

AIN 

Product Code 

Species 

1. Electronic Auto Set Clip Tag 

ISO 11784/85 

Compliant – HDX 

Width = 9 mm 

Length = 37mm 

Length = 78.9 (before 

application) 

AIN 0063 

 

Alpaca/Llma, 

Deer/Elk, Pigs 

 

1. 
 

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Southfork Solutions Inc. 

8021 West 17th South 

Idaho Falls, ID 83403 

Phone: (208) 524-5801 

www.southforksolutions.com

840 RFID TAGS 

Tag Name Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

1. TBD UHF Panel Tag 

Ultrahigh frequency 

Height = 12 mm 

Width = 28 mm 

Length = 73 mm 

AIN 0062b Bison, Cattle, 

Deer/Elk 

1. 
 

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Stockbrands Co. Pty. Ltd. 

53 Edwards Street 

Osborne Park, Western Australia 

6017 

Animal Profiling International, Inc. 

Portland, OR

Phone: (503) 247-8066 

Fax: (503) 247-8028 

www.animalprofiling.com

840 RFID TAGS 

Tag Name Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

1. Write TAG RFID Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 31.5 mm 

 Weight = 9.5 g 

AIN 0027 

 

Bison, Cattle, 

Deer/Elk 

 

1. 
 

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Temple Tag Ltd. 

409 North Hwy 95 

Little River, TX 76554

Phone: 800-433-3112

www.templetag.com

840 VISUAL TAGS 

Tag Name Type Panel Size AIN 

Product Code 

Species 

1. Herdsman Small Visual Panel Eartag Height = 14.3 mm 

Width = 57.3 mm 

AIN 0032 

 (w/ Button Male) 

Bison, Cattle, 

Deer/Elk, Pigs 

2. Herdsman 

Medium 

Visual Panel Eartag 

 

Height = 15.3 mm 

Width = 65.2 mm 

AIN 0033 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk, Pigs 

3. Herdsman Large Visual Panel Eartag 

 

Height = 15.4 mm 

Width = 76.5 mm 

AIN 0034 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk, Pigs 

1. 2. 3. 
 

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Temple Tag (Continued) 

840 RFID TAGS 

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. Temple EID 

Tag 

Button Eartag 

ISO 11784/85 

Compliant-FDX 

Diameter = 31.2 mm AIN 0035 Bison, Cattle, 

Deer/Elk, Pigs 

2. ComfortEar 

HDX Tag 

Button Eartag 

ISO 11784/85 

Compliant-HDX 

Diameter = 31.2 mm AIN 0059 Bison, Cattle, 

Deer/Elk, Pigs 

1. 2. 
 

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Y-Tex Corporation 

1825 Big Horn Avenue 

Cody, WY 82414 

Phone: 307-527-6433

www.ytex.com

840 VISUAL TAGS 

Tag Name Type Panel Size AIN 

Product Code 

Species 

1. All American 1 

Star 

Visual Panel Eartag 

 

Length = 50.8 mm 

Width = 41.91 mm 

AIN 0028 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk, Pigs 

2. All American 2 

Star 

Visual Panel Eartag 

 

Length = 83.62 mm 

Width = 50.16 mm 

AIN 0029 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk 

3. All American 3 

Star 

Visual Panel Eartag 

 

Length = 98.6 mm 

Width = 64.28 mm 

AIN 0030 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk 

4. All American 4 

Star 

Visual Panel Eartag 

 

Length = 119.63 mm 

Width = 84.125 mm 

AIN 0031 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk 

1. 2. 3. 4. 
 

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Y-Tex Corporation (Continued)

840 RFID TAGS 

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. Y-Tex Round 

RFID Tag 

 

RFID Button Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 

32.05 mm 

 

AIN 0007 

 

Bison, Cattle, 

Deer/Elk, Pigs 

 

2. All American 

UHF 4 Star 

UHF Panel Tag 

Ultrahigh frequency 

Length = 119.63 mm 

Width = 84.125 mm 

AIN 0044 

(w/ Button Male) 

Bison, Cattle, 

Deer/Elk 

3. Y-Tex Round 

RFID Tag 

HDX RFID 

Round Tag 

Diameter = 

32.14 mm 

AIN 0050 Bison, Cattle, 

Deer/Elk, Pigs 

1. 2. 3. 
 

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Zee Tags Limited 

19 Douglas Alexander Parade 

P.O. Box 302 477 

North Shore City 0751 

New Zealand 

+64 9 414 1790

www.zeetags.com

840 RFID TAGS 

Tag Name 

 

Type RFID 

Technology 

Size 

(transponder piece) 

AIN 

Product Code 

Species 

 

1. Cattle RFID 

Button (FDX) 

RFID Button 

Eartag 

ISO 11784/85 

Compliant - FDX 

Diameter = 33 mm 

 

AIN 0015 Bison, Cattle, 

Deer/Elk 

1.